Reference Guide

Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the C-Series.
7.5.1.0 Introduced on the E-Series.
Usage Information
When BFD is enabled with VRRP neighbors, the VRRP protocol registers with the
BFD manager on the route processor. BFD sessions are established with all
neighboring interfaces participating in VRRP. If a neighboring interface fails, the
BFD agent on the line card notifies the BFD manager, which in turn notifies the
VRRP protocol that a link state change occurred.
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Bidirectional Forwarding Detection (BFD)